Call blocking probability for heterogeneous and asymmetrical traffics in a TD-CDMA system

Author

Cho, Ho-Shin ; Lee, Dong Yun ; Lee, Yutae ; Yun Won

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Kyungpook Nat. Univ., Taegu, South Korea

Volume

4

fYear

2004

fDate

17-19 May 2004

Firstpage

1929

Abstract

We develop a mathematical model to analyze the call-level performance of radio channel allocation of TD-CDMA systems supporting multi-type heterogeneous and asymmetrical traffic conditions. Our mathematical model uses multidimensional operations of random vectors or matrices to deal with multiple types of traffic and with both the up- and down-transmission directions at one time. Employing the mathematical model, we obtain the call blocking probability and the optimum timeslot switching-point with the smallest call blocking probability. We also propose a framework for radio resource management in TD-CDMA systems to increase the overall performance in terms of call blocking probability considering the multidimensional conditions of heterogeneous and asymmetrical traffic.

Keywords

4G mobile communication; channel allocation; code division multiple access; matrix algebra; mobile radio; probability; resource allocation; telecommunication traffic; time division multiple access; vectors; 4G mobile communication systems; TD-CDMA system; TDMA system; asymmetrical traffic; call blocking probability; heterogeneous traffic; mathematical model; multidimensional operations; radio channel allocation; radio resource management; random matrices; random vectors; timeslot switching-point; Channel allocation; Downlink; Internet; Mathematical model; Mobile communication; Mobile computing; Performance analysis; Resource management; Telecommunication traffic; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th

ISSN

1550-2252

Print_ISBN

0-7803-8255-2

Type

conf

DOI

10.1109/VETECS.2004.1390610

Filename

1390610